public class Demo04 {
    public static void main(String[] args) {
//        等腰三角形
        for (int i =1;i<=5;i++){
            for (int j=1;j<=5-i;j++){
                System.out.print(" ");
            }
            for (int j=1;j<=2*i-1;j++){
                System.out.print("*");
            }
            System.out.println();
        }
    }
}
